Speaking on Sky Sports' Monday Night Football, he said: "I didn’t see it coming, it was a dismal, weak day for United. They started the season trying to rid themselves of these performances.

"Mourinho referred to attitude and consistency, he needs to identify the ones causing those problems and they need to go. I think there will be three or four players leaving and the same number coming in.

United lost to the Premier League's bottom club (Image: Getty Images Europe)

"He's got to make that gap up and it's going to be tough. Consistency is about mentality and the players fell well below that considering the last couple of weeks."

United head to Wembley to face Spurs in the FA Cup final this weekend but not before they play Bournemouth in the league on Wednesday night looking to cement second place in the table.